Panasonic Lumix S1R II Review: 44 MP Hybrid Built for Creation

The Panasonic Lumix S1R II succeeds a S1R that had impressed with its build and image quality but suffered from the absence of phase-detection autofocus. Five years later, Panasonic finally integrates phase detection, raises resolution to 44 MP, adds a 40 fps electronic burst and opens the door to 8K ProRes. The body remains on the L-Mount, shared with Leica and Sigma through the L-Mount Alliance. This alliance is an asset for access to Sigma Art and Leica SL lenses, yet the native Panasonic ecosystem remains narrower than Canon RF or Nikon Z in sheer number of lenses.

In the high-end full-frame hybrid market, the S1R II sits directly against the Canon EOS R5 Mark II (4 299 USD, 45 MP, 30 fps) and the Nikon Z8 (4 000 USD, 45,7 MP, 120 fps). At 3 200 USD at launch, it is the least expensive of the three. This pricing is a genuine commercial argument, provided the compromises on autofocus and battery life are accepted.

The Lumix S1 II (2025, 24,2 MP, 3 200 USD) coexists in the range as a speed- and versatility-oriented alternative. The S1R II stands out with its higher resolution (44 MP versus 24,2 MP) and identical electronic burst (40 fps for the S1R II versus 30 fps for the S1 II). The choice between the two hinges on whether resolution or maximum native sensitivity takes priority.

Build and weather-sealing

The body weighs 795 g without lens, measuring 134 x 102 x 92 mm. It is heavy. For comparison, the Canon EOS R5 Mark II weighs 746 g and the Sony α7R V 723 g. The S1R II is not the choice for the minimalist traveller. On the positive side, Panasonic declares robust weather-sealing, and field experience with the original S1 series confirms serious resistance to rain and spray. I used the original S1 in coastal Brittany conditions: the construction inspires long-term confidence.

The grip is deep and natural even with heavy lenses such as the Sigma 70-200 mm f/2.8 DG DN Sports. Physical controls are plentiful: AF joystick, dedicated ISO and shutter-speed dials, AF-ON button reachable without repositioning the hand. This ergonomics is an advantage for professionals who frequently adjust settings without entering menus.

Viewfinder and screen

The EVF shows 5 760 000 dots with 0,78x magnification. It is the class reference. The Canon EOS R5 Mark II also offers 5 760 000 dots, but at 0,76x. The difference is minor in practice, yet the S1R II provides a slightly larger view. For precise framing in portrait or landscape work, this EVF ranks among the best available on a full-frame hybrid.

The rear screen measures 3 inches with 1 840 000 dots and features a fully articulated hinge. This suits video vlogging or low-angle framing perfectly. The screen is touch-sensitive, easing AF point selection in video. The 1 840 000-dot resolution is adequate without being exceptional: the Sony α7R V offers 2 100 000 dots on its rear screen.

Dynamic range and measured noise

Dynamic range reaches 11,1 EV at base ISO. This is a solid figure for a sensor of this resolution, comparable to the 11,5 EV of the Canon EOS R5 Mark II (45 MP) and slightly below the 11,7 EV of the Sony α7R V (61 MP). In practice, 11,1 EV allows recovery of roughly 3 to 4 stops in highlights in RAW without visible artefacts, which is sufficient for portrait work in contrasty natural light and golden-hour landscapes. It does not match the Leica M11-P measured at 15,1 EV, but that camera offers neither comparable burst nor video.

The expert angle matters: the 11,1 EV dynamic range is measured at native ISO 100. As sensitivity rises, dynamic range falls. At ISO 3 200, BSI sensors of this generation typically lose 1,5 to 2 EV according to Photons to Photos data. The S1R II is no exception. For wedding photographers often working indoors at ISO 3 200 or 6 400, effective dynamic range drops to around 9 to 9,5 EV, still usable but requiring careful exposure.

Native sensitivity and high ISO

Native ISO range extends from 100 to 51 200, with extension to 204 800. The BSI sensor brings a genuine advantage over conventional CMOS sensors in low light: the photodiode sits closer to the surface, reducing read noise. Compared with the original S1R (conventional CMOS), the gain is noticeable from ISO 6 400. Against the Sony α7R V (61 MP, native max ISO 32 000), the S1R II offers a wider native range, consistent with its more modest resolution.

The 44 MP resolution allows generous cropping. In A3+ prints (329 x 483 mm) at 300 dpi, you retain roughly 30 % cropping margin without falling below optimal print resolution. For studio portrait or wedding work, this latitude is a concrete commercial argument when clients request large-format prints.

Architecture and coverage

The S1R II features 779 AF points with 100 % sensor coverage. Detection reaches down to -6 EV, covering most low-light indoor situations. Both human-eye and animal-eye detection are available. On paper the system is complete. In practice, DPReview and Imaging Resource tests published after launch report fast initial acquisition but less robust tracking than Canon or Sony on unpredictably moving subjects.

The 779-point figure must be put in perspective. The Canon EOS R5 Mark II offers 1 053 AF points, 35 % more. This higher density improves tracking precision on small subjects in the frame, especially in wildlife. The Nikon Z8 shows 493 points but on a stacked CMOS sensor that processes data faster, partially offsetting the lower density. The S1R II sits between the two in real-world performance.

Subject detection: what works, what drops

Human-eye detection works reliably in static or slow-moving portraiture, the main use case for this body. In wedding work it maintains focus on the principal subject’s face even with several people in frame. Animal-eye detection functions, yet independent tests rank it behind Canon Dual Pixel AF II on fast-moving subjects.

Burst: 40 fps electronic, 9 fps mechanical

Electronic burst reaches 40 fps. This matches the Canon EOS R6 V (40 fps, 32,5 MP), yet on a 44 MP sensor, which is technically more demanding. The Nikon Z8 reaches 120 fps electronic, but on a stacked sensor that reads data faster and avoids rolling shutter. The S1R II uses a non-stacked BSI sensor: at 40 fps, rolling shutter can appear on very fast subjects or rapid pans. This point is not precisely documented in available data, but is inherent to the non-stacked BSI architecture.

Mechanical burst is limited to 9 fps. This is adequate for portrait and wedding work, yet behind the 12 fps mechanical of the Canon EOS R5 Mark II. Maximum shutter speed reaches 1/8 000 s mechanical. For sport photography in bright sun with a wide aperture, this limit is standard in the category.

IBIS 8 stops: concrete impact in photo and video

IBIS compensates 8 stops of shake. In practice, with a 50 mm equivalent lens, this allows shutter speeds around 1/6 s to 1/13 s while maintaining sharp handheld images, depending on conditions. For landscape work in fading light or video without an external stabiliser, this is a decisive advantage. The Canon EOS R5 Mark II claims 8,5 stops combined body-lens, half a stop more. The difference is marginal in real use.

• 8 stops IBIS compensated, among the best in full-frame
• Electronic burst 40 fps on 44 MP, rare combination at this price
• Mechanical burst 9 fps, adequate for portrait and wedding
• Maximum shutter speed 1/8 000 s mechanical, category standard

Resolutions and frame rates

The S1R II records up to 8K at 120 fps according to manufacturer data. This maximum rate is exceptional: the Canon EOS R5 Mark II tops out at 8K 60 fps, the Nikon Z8 at 8K 30 fps. In 4K, available rates support slow-motion and broadcast fluidity. Recording is unlimited in duration, essential for long shoots (events, documentary, wedding).

The ProRes codec is available natively. This is a direct advantage for colourists and editors working in DaVinci Resolve or Final Cut Pro: ProRes avoids a transcoding step and preserves quality through each render generation. H.264 and H.265 codecs are also available for uses prioritising smaller files. Bit depth reaches 12 bits, offering greater colour-correction latitude than the 10-bit standard of most competitors.

Log and video connectivity

Log recording is available, providing a flat response curve to maximise latitude in post-production. The HDMI output is full-size HDMI (Type A), easing connection to an external recorder or professional field monitor without an adapter. USB is USB 3.2 Gen 2 (10 Gbit/s), allowing fast transfer of 8K ProRes files whose data rate can be high.

For videographers comparing the S1R II with the Canon EOS R5 C (4 499 USD, 45 MP, 8K 30 fps, 12 bits), the S1R II is 1 299 USD cheaper and offers a higher maximum 8K frame rate. The Canon EOS R5 C benefits from dedicated active cooling, yet the S1R II’s unlimited recording largely compensates for moderate-length shoots.

The S1R II features dual slots: CFexpress Type B and SD UHS-II. The CFexpress Type B slot is essential for writing high-bitrate 8K ProRes files without buffer saturation. The SD UHS-II slot ensures compatibility with cards already in most professionals’ kit. The absence of dual CFexpress is an acceptable compromise: few photographers need two high-speed slots simultaneously.

USB 3.2 Gen 2 (10 Gbit/s) allows direct transfer to a computer or external SSD without a card reader. In 8K ProRes shooting, files are large: this transfer speed saves real time at the end of the day. Wi-Fi and Bluetooth are built in for wireless transfer and remote control via the Lumix Lab app.

• Dual slot CFexpress Type B + SD UHS-II, no compromise on redundancy
• USB 3.2 Gen 2 (10 Gbit/s) for fast transfer of large files
• Full HDMI (Type A) without adapter for external monitors and recorders
• Wi-Fi and Bluetooth built in, compatible with Lumix Lab app

CIPA battery life is rated at 350 shots. This is the lowest in the category: the Canon EOS R5 Mark II reaches 630 shots, the Nikon Z8 340 (slightly lower), the Sony α7R V 530. In real use, CIPA figures are pessimistic by roughly 30 to 50 % for photographers who disable Wi-Fi and limit screen use. In wedding work, expect 600 to 800 real shots per charge with mixed EVF/screen use. For a full wedding day (1 500 to 2 000 shots), two spare batteries are essential.

The battery is the DMW-BLJ31, shared with the original S1R and S1 II. Third-party batteries are widely available, reducing solution cost. An official or third-party battery grip doubles endurance at the price of extra weight on an already heavy body.

Against the Canon EOS R5 Mark II

The Canon EOS R5 Mark II (4 299 USD, 45 MP, stacked sensor) is the closest rival. It offers 1 053 AF points versus 779 on the S1R II, a 30 fps electronic burst versus 40 fps, and 8,5-stop IBIS versus 8 stops. Canon clearly wins on autofocus and tracking reliability. The S1R II counters with a 1 099 USD lower price, native 12-bit ProRes and higher 8K frame rate. For a wedding photographer who values AF, Canon is safer. For a hybrid videographer wanting ProRes without extra cost, the S1R II is more coherent.

Against the Nikon Z8

The Nikon Z8 (4 000 USD, 45,7 MP, stacked sensor) offers 120 fps electronic versus 40 fps on the S1R II. The Nikon advantage is massive for sport and wildlife. Conversely, the Z8 weighs 910 g versus 795 g for the S1R II, and its CIPA battery life is 340 shots, slightly lower. The Z8 does not offer native ProRes. For creative video, the S1R II is more complete. For pure speed, the Z8 has no equal in this price range.

Against the Sony α7R V

The Sony α7R V (3 900 USD, 61 MP) delivers 38 % higher resolution and 11,7 EV measured dynamic range versus 11,1 EV. Yet it tops out at 10 fps electronic, does not handle native ProRes and its IBIS is rated at 8 stops (identical to the S1R II). For a studio photographer printing very large, Sony is more relevant. For a hybrid photo-video profile, the S1R II is more versatile.

The L-Mount is shared between Panasonic, Leica and Sigma. This grants access to Sigma Art lenses in L-Mount, recognised for value, and Leica SL lenses, recognised for optical quality but at high prices. Panasonic offers its own S-Pro and S ranges, with focal lengths covering common portrait-to-telephoto needs.

The L-Mount catalogue today contains several dozen native lenses, covering the needs of portrait, wedding and landscape photographers. For specialised uses (super-telephoto sports, high-resolution macro), the Canon RF or Nikon Z catalogues are better stocked. This point must be factored into the purchase decision if migrating from another system: the cost of lens migration can exceed that of the body.

The launch price of 3 200 USD places the S1R II 1 099 USD below the Canon EOS R5 Mark II and 800 USD below the Nikon Z8. For a hybrid photo-video profile, this gap is significant: it represents the budget for a quality Sigma Art lens. Value for money is objectively favourable if you value ProRes video and 44 MP resolution.

On the used market, the original S1R (2019, 47,3 MP, no phase detection) trades around 1 500 to 1 800 EUR in good condition. If your use is exclusively photographic and phase-detection autofocus is not a priority (studio, static landscape), the original S1R remains a credible alternative at less than half the price of the S1R II. For video and burst work, however, the S1R II has no equivalent in the Panasonic range.

The S1R II is the best market choice for a hybrid photographer-videographer who wants 44 MP, 8K ProRes 12-bit, 40 fps and 8-stop IBIS in a single weather-sealed body at 3 200 USD. This combination does not exist at Canon or Sony at this price. The 779-point autofocus is sufficient for portrait, wedding and video. It is insufficient for professional sport and high-speed wildlife: on those uses, the Canon EOS R5 Mark II or Nikon Z8 remain more reliable.

The 350-shot CIPA battery life is the only operational deal-breaker: two spare batteries are essential for any long session. The 795 g body weight must be anticipated if travelling light. The L-Mount ecosystem is complete for portrait and wedding work, yet more limited for sport or macro specialisations.

• Buy the S1R II if you shoot portrait, wedding or hybrid creative video
• Choose the Canon EOS R5 Mark II if autofocus and tracking reliability are priorities
• Choose the Nikon Z8 if you need 120 fps electronic for sport or wildlife
• Choose the Sony α7R V if you print very large and 61 MP justify the extra cost